<?php
$x = 100;
$y = "100";

var_dump($x == $y);
echo "<br>";
var_dump($x == $y);
echo "<br>";
var_dump($x != $y);
echo "<br>";
var_dump($x !== $y);
echo "<br>";

$a = 50; 
$b = 90;

var_dump($a > $b);
echo "<br>";
var_dump($a < $b);
?>